Home / 1,261,787.78-1,741,244.10-717,911.66

Finding the Fourth Proportional to 1,261,787.78, 1,741,244.10 and 717,911.66

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Solution

The fourth proportional to 1,261,787.78, 1,741,244.10 and 717,911.66 is: 990,704.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,787.78 : 1,741,244.10 = 717,911.66 : x
  2. Step 2: Convert to fraction form
    1,261,787.78/1,741,244.10 = 717,911.66/x
  3. Step 3: Cross multiply
    1,261,787.78x = 1,741,244.10 × 717,911.66
  4. Step 4: Simplify right side
    1,261,787.78x = 1,250,059,442,296.21
  5. Step 5: Solve for x
    x = 1,250,059,442,296.21/1,261,787.78
  6. Step 6: Final answer
    x = 990,704.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.